2.2 2.7 GHz LOW NOISE AMPLIFIER WHM25-3020AE 1 REV B WHM25-3020AE LNA is a low noise figure, wideband, and low power SMT packaged amplifiers with unconditional stable design. The amplifier offers typical 1.0 noise figure and 16 m output IP 3 at the frequency range from 2.2 GHz to 2.7 GHz of 3G and ISM bands. WHM25-3020AE LNA is most suitable for cellular base stations, wireless data communications, tower top receiver amplifiers, last-mile wireless communication systems, and wireless measurement applications. WHM25-3020AE is designed to meet the rugged standards of MIL-STD-202 and MIL-STD-883. Key Features: Preliminary Impedance: 50 Ohm MTBF 2 : >600,000 hrs (68 Years) LGA (land grid array) Package: 6-pin Unconditional Stable: k > 1 Low Noise: 1.0 Output IP 3 : 16.0 m Gain: 27.0 P 1 : 6.0 m Single Power Supply: 25 ma @ +5V Frequency Range: 2.2 ~ 2.7 GHz, usable from 1.8 ~ 3.0 GHz Operating Temperature: -40 ~ +85 ºC Return Losses: 20 Typical Small Size: 0.30 x 0.30 x 0.060 (7.62 mm x 7.62 mm x 1.52 mm) Built-in Functions: DC blocks at input and output, temperature compensation circuits, and auto DC biases. Absolute Maximum Ratings 3 : Symbol Parameters Units Absolute Maximum V dd DC Power Supply Voltage V 7.0 I dd Drain Current ma 50 P diss Total Power Dissipation mw 350 P In,Max RF Input Power m 10 T ch Channel Temperature C 150 T STG Storage Temperature C -65 ~ 150 T O,MAX Maximum Operating Temperature C -55 ~ 100 R th,c Thermal Resistance C/W 220 1 Specifications are subject to change without notice. 2 MTBF: Mean Time Between Failure, Per TR-NWT-000332, ISSUE 3, SEPTEMBER, 1990, T=40 o C 3 Operation of this device above any one of these parameters may cause permanent damage. 1
Specifications: a) Table 1 Summary of the electrical specifications WHM25-3020AE at room temperature Index Testing Item Symbol Test Constraints Nom (RT) Min Max Unit 1 Gain S 21 2.2 2.7 GHz 27 25 29 2 Gain Variation G 2.2 2.7 GHz +/- 0.5 +/- 0.75 3 Input Return Loss S 11 2.2 2.7 GHz 20 16 4 Output Return Loss S 22 2.2 2.7 GHz 20 16 5 Reverse Isolation S 12 2.2 2.7 GHz 43 40 6 Noise figure NF 2.2 2.7 GHz 1.0 1.2 7 Output Power 1 compression Point 8 Output-Third-Order Interception point P 1 2.2 2.7 GHz 7 6 m IP 3 Two-Tone, P out +0 m each, 1 MHz separation 16 14 m 9 Current Consumption I dd V dd = +5 V 25 22 30 ma 10 Power Supply Voltage V dd +5 +4.7 +5.3 V 11 Thermal Resistance R th,c Junction to case 220 12 Operating Temperature T o -40 +85 13 Maximum Average RF Input Power o C/W P IN, MAX 2.2 2.7 GHz 10 m o C b) Passband Frequency Response As shown in Figure 1, the typical gain of the WHM25-3020AE is 27.0 across 2.2 to 2.7 GHz. The typical input and output return losses are 20 across the frequency of 2.2 to 2.7 GHz. The LNA works from 1.8 GHz to 3.0 GHz. Figure 2 shows the measured P 1 and IP 3 of the WHM25-3020AE. The typical P 1 and IP 3 are 7.0 m and 16.0 m in the frequency range of 2.2 to 2.7 GHz, respectively. Figure 3 illustrates the measured noise figure performance at full temperature. The measured results include the test fixture loss of approximately 0.05. The noise figure is 1.0 across the frequency range of 2.2 to 2.7 GHz at room temperature. At 85 0 C, WHM25-3020AE only has 0.25 noise increases. At 40 0 C, WHM25-3020AE offers approximately 0.20 less noise figure than that at room temperature. Figure 4 demonstrates the stability factor k of the amplifier. It is greater than 1.0 in any frequency band and the amplifier is unconditional stable. Figure 5 is the block diagram of internal circuit of WHM25-3020AE. It is a two-stage amplifier with the DC block capacitors at the input and output RF ports. All the RF matching networks, DC bias circuitries, and temperature compensation circuits are built in. Figure 6 demonstrates the application schematic diagram of WHM25-3020AE. It may require one external decoupling capacitor of 0.01 uf to build a LNA with WHM25-3020AE. The +5V DC is applied at Pin 2. No DC block capacitor is required for both input and output RF ports. The NC pins connected to ground are recommended. For +5V line trace length being longer than 6 inch without a decoupling capacitor, an additional 0.01 ~ 0.1 uf de-coupling capacitor with minimum rating voltage of 10V may be needed across the +5V line to ground. The capacitor must be rated in the temperature range of -40 0 C to 85 0 C to ensure the entire circuit working in the specified temperature range. Figure 7 shows the mechanical outline and recommended motherboard layout of WHM25-3020AE. Plenty of ground vias on the motherboard are essential for the RF grounding. The width of the 50-Ohm lines at the input and output RF ports may be different for different property of the substrate. 2
50 WHM25-3020AE Extended Band Performance @ 25 C 20.0 WHM25-3020AE IP3 and P1 40 S11 S21 S12 S22 18.0 30 16.0 20 10 0-10 -20-30 -40-50 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 m 14.0 12.0 10.0 8.0 6.0 4.0 2.0 0.0 IP3 (m) P1 (m) 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 FIG. 1 Typical small signal performance. FIG. 2 Typical P 1 and IP 3 at room temperature. 2.0 WHM25-3020AE Noise Figure 10 WHM25-3020AE Stability Factor k 1.8 1.6 25C -40C 85C 9 8 1.4 7 1.2 6 1.0 k 5 0.8 4 0.6 3 0.4 2 0.2 0.0 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 1 0 0 2 4 6 8 10 12 14 16 18 20 22 24 26 FIG. 3 Noise figure performance at full temperature FIG. 4 Measured stability factor k FIG. 5 Block diagram of internal circuit. FIG. 6 Typical application schematic for WHM25-3020AE 3
WHM25-3020AE Mechanical Outline, WHM-2: FIG. 7 WHM25-3020AE outline Ordering Information Model Number WHM25-3020AE Waffle pack with the capacity of 81 pieces (9 x 9) is used for the packing. Contact factory for tape and reel packing option for higher volume requirements. 4
Small Signal S-Parameters:!WHM25-3020AE!s-parameters at Vdd=5V, Idd=25 ma, including the test fixture.!last updated 5/5/06. # GHZ s MA R 50!F(GHz) MAG S11 ANG S11 MAG S21 ANG S21 MAG S12 ANG S12 MAG S22 ANG S22 0.05 0.940-166.2 0.060-91.4 0.0100-148.9 0.978-12.7 0.1 0.676 164.4 0.098-59.1 0.0052-150.9 0.912-24.9 0.2 0.803 98.9 0.333-85.2 0.0024 49.6 0.843-49.5 0.3 0.827 60.2 1.324-108.6 0.0021 106.2 0.642-73.5 0.4 0.745 20.3 3.345-163.5 0.0006 162.3 0.559-86.5 0.5 0.728-16.6 6.608 156.7 0.0008-139.5 0.476-102.2 0.6 0.721-50.6 11.146 126.4 0.0012-172.1 0.405-121.0 0.7 0.650-82.7 16.933 92.9 0.0025 173.5 0.319-135.8 0.8 0.495-114.3 19.074 49.5 0.0031 131.8 0.250-143.7 0.9 0.402-141.7 21.932 15.4 0.0039 115.5 0.212-151.3 1 0.315-165.6 24.305-14.6 0.0044 97.3 0.193-160.4 1.1 0.260 173.5 25.084-44.1 0.0062 66.2 0.182-176.6 1.2 0.219 156.3 25.087-68.6 0.0061 52.5 0.152 168.8 1.3 0.195 139.0 24.906-89.9 0.0068 36.9 0.126 153.5 1.4 0.175 122.2 24.717-110.8 0.0074 25.4 0.101 137.3 1.5 0.155 103.5 25.554-131.6 0.0065 15.7 0.075 119.1 1.6 0.138 89.6 24.573-149.2 0.0076 12.1 0.053 104.7 1.7 0.126 75.5 24.113-166.9 0.0083 1.5 0.037 88.2 1.8 0.115 63.0 24.077 176.2 0.0084-10.6 0.024 68.5 1.9 0.101 52.7 24.051 160.5 0.0077-22.7 0.014 31.4 2 0.091 48.7 23.310 149.0 0.0078-27.0 0.012-5.6 2.1 0.084 44.9 22.612 134.4 0.0074-38.5 0.013-36.6 2.2 0.080 41.6 22.338 118.6 0.0076-48.9 0.019-54.7 2.3 0.078 39.2 22.237 103.2 0.0086-51.1 0.027-62.5 2.4 0.083 40.2 21.820 90.2 0.0083-62.8 0.039-72.9 2.5 0.089 36.8 21.268 75.0 0.0074-69.1 0.054-84.6 2.6 0.098 32.6 21.075 59.7 0.0068-76.1 0.073-97.0 2.7 0.112 29.0 21.064 45.1 0.0069-85.0 0.097-109.3 2.8 0.123 21.2 20.866 30.5 0.0079-88.8 0.126-123.3 2.9 0.133 14.4 20.347 16.4 0.0068-95.9 0.160-139.0 3 0.146 7.5 20.047 1.4 0.0064-108.7 0.200-153.7 3.1 0.161 0.4 20.241-14.1 0.0074-120.6 0.244-167.9 3.2 0.176-7.2 19.515-27.5 0.0073-133.7 0.290 174.7 3.3 0.191-16.8 19.014-44.0 0.0084-139.3 0.346 158.2 3.4 0.208-26.2 18.621-59.3 0.0085-145.8 0.400 141.9 3.5 0.225-35.6 17.742-74.3 0.0074-158.0 0.457 124.9 3.6 0.239-47.3 16.711-93.7 0.0067-171.5 0.519 108.2 3.7 0.252-58.2 15.842-107.7 0.0073 174.5 0.568 91.2 3.8 0.265-69.5 14.439-122.7 0.0072 165.4 0.611 74.6 3.9 0.277-81.3 13.194-140.7 0.0062 158.7 0.657 58.2 4 0.288-92.6 12.760-154.6 0.0060 156.7 0.716 43.5 4.1 0.295-103.7 11.092-167.4 0.0070 135.3 0.715 27.6 4.2 0.303-115.4 9.867 178.1 0.0077 120.9 0.745 12.8 4.3 0.314-127.0 9.120 163.9 0.0075 107.6 0.780-0.2 4.4 0.322-136.8 7.971 152.0 0.0069 85.5 0.759-15.7 4.5 0.328-148.4 7.349 137.4 0.0072 84.1 0.792-27.6 5 0.365 160.2 4.330 80.0 0.0110 24.3 0.751-88.2 5.5 0.406 112.4 2.782 24.2 0.0160-32.0 0.676-141.2 6 0.429 71.4 1.693-35.5 0.0160-93.2 0.600-176.7 ****** 5